Katy Perry Flashes Cleavage Again -- With Simpsons Puppets

During a live-action sequence on Sunday's episode of The Simpsons, Perry, 25, vamped it up in a low-cut, skin-tight dress festooned with Homer, Bart, Lisa, Marge and Maggie. During Perry's visit with puppet versions of the animated family (plus Mr. Burns and barkeep Moe), the recently wed star and the gang crooned "39 Days of Christmas."

Back in September, the "Firework" singer got into hot water for wearing a similarly revealing number for an appearance on Sesame Street, in which she sang with Elmo. After parents complained in droves, the clip was yanked.